BBC monthly outlook
Summary
Often unsettled with swings in temperature
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Saturday 30 November – Sunday 8 December
Cold initially, then turning milder and wetter
This weekend will be often dry and bright for most but rather cold with overnight frosts and local fog. However, on Saturday, south-west England will stay cloudier and windy with rain over parts of Cornwall and Devon. Sunday will see a scattering of showers for eastern fringes of England and the far-north of Scotland but otherwise a lot of dry weather. On Monday and Tuesday, an area of high pressure will be in control of the weather over England, Wales and Northern Ireland, bringing a lot of dry and settled weather. It will remain rather cold though with night frosts and a risk of fog, which could linger into the daytime in places. However, over Scotland it will be cloudier at times and breezier with patchy rain.
Through the middle to latter part of next week, the high pressure area should retreat southwards, allowing milder westerly flows to develop. Temperatures are expected to recover near or a little above average across much of the UK as the week progresses. Northern and north-western parts of the UK will gradually become wetter and windier with some prolonged and rather heavy rain likely over western Scotland. The southern half of the UK should stay largely dry through the middle part of the week but some rain is likely, here, too before the end of the week. By the end of next week, chillier conditions may start to spread from the north again, perhaps bringing a return of overnight frost.
Monday 9 December – Sunday 15 December
Windy, showery and chilly
An unsettled and windy week is expected. Winds are likely to alternate between a westerly and north-westerly direction with temperatures alternating between near average and below average across the country. Many areas are likely to have showers and some lengthier outbreaks of rain spreading from the west. Rainfall amounts are favoured to be above average for most, perhaps well-above average over Wales and western England. The showers are likely to become wintry at times over hills, especially through the second half of the week, when northern areas could even see some wintry precipitation to lower levels for a time. There are likely to be some night frosts, too, under any lengthier clear spells at night.
Monday 16 December – Sunday 29 December
Wet and windy at times with variable temperatures
The second half of December is expected to be wet and windy at times with swings in temperature. Low pressure areas are likely to be often nearby, bringing wet conditions with above normal rainfall expected quite widely. The rainfall could lead to some further flood issues too. It is likely to be breezy at times, too. By the festive week, confidence in the forecast falls to low. However, there are some signs that the low pressure areas may track further south with rainfall tending to ease over the northern half of the UK. However, indications are that the north could turn somewhat chillier again, perhaps with wintry precipitation at times, most likely over Scotland. There are chances, though, that the wetter but milder conditions continue to prevail quite widely.
Further ahead
We will take another look at the prospects for December, including the Christmas period.
https://www.bbc.co.uk/weather/outlook